Headlamp
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"Headlight" redirects here. For other uses, see Headlight (disambiguation).
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A motor scooter's front with an impractical number and variety of headlamps, added for decorative purposes.
One of the first optic headlamp lenses, the Corning Conaphore. Selective yellow "Noviol" glass version shown.
1917 advertisement for the Corning Conaphore headlamp lens shown above.
A headlamp is a lamp, usually attached to the front of a vehicle such as a car, with the purpose of illuminating the road ahead during periods of low visibility, such as night or precipitation. While it is common for the term headlight to be used interchangeably in informal discussion, headlamp is the technically correct term for the device itself, while headlight properly refers to the beam of light produced and distributed by the device.
A headlamp can also be mounted on a bicycle (with a battery or small electrical generator), and most other vehicles from airplanes to trains tend to have headlamps of their own.
